Nothing I've said is tricky. If you don't understand that, then...
I'm interested - why you think that makes me the fool?

A simple copy'n'paste of "What is doubly and single linked list" into google yields, wait for it, one hundred and twenty seven million results (127,000,000).

Good day to you, Einstein!

i know google.....but if i search it google,,,,then why i ask this forum?
just for good answer......but u?????u suggest me....why?i m not want suggest.i want it answer.....
now i realize that you dont know about this......
thank you

If you can present an actual question, then ask it. If all you want to do is the equivalent of demanding that we recent the whole of the Torah while standing on one foot, then I have to agree with the Sadducees (the head rabbi chased that idiot gentile away with a stick).

Go do your own research. Then if there's something in what you find that you don't understand, that is the time that you come here with your specific question.